Digital Commons Network^™

Spectrochet: A Game, Lucas Gnos

Computer Engineering

No abstract provided.

Wireless Mesh Networks For Scada Systems, Zachary Weisman

Computer Engineering

No abstract provided.

The Use Of Lactic Acid Bacteria To Control The Growth Of Foodborne Pathogens On Fresh-Cut Fruits And Sprout Vegetables, Franca Gabriela Rossi

Master's Theses

Growing consumer awareness of the health benefits associated with fruits and vegetables and demand for easy to prepare products has prompted the development of a wide variety of minimally processed fruits and vegetables. Minimally processed fruits and vegetables are often peeled, cut, or diced which compromise the produces’ natural protective barriers, exposing a nutrient rich medium and providing an ideal environment for the growth of microorganisms, including foodborne pathogens. The germination conditions of sprout vegetables consisting of relatively high temperatures and humidity, low light and abundance of nutrients are also conducive to the proliferation of foodborne pathogens. Recent outbreaks and …

Subsystem Failure Analysis Within The Horizon Simulation Framework, Ian M. Lunsford

Master's Theses

System design is an inherently expensive and time consuming process. Engineers are constantly tasked to investigate new solutions for various programs. Model-based systems engineering (MBSE) is an up and coming successful method used to reduce the time spent during the design process. By utilizing simulations, model-based systems engineering can verify high-level system requirements quickly and at low cost early in the design process. The Horizon Simulation Framework, or HSF, provides the capability of simulating a system and verifying the system performance. This paper outlines an improvement to the Horizon Simulation Framework by providing information to the user regarding schedule failures …

An Investigation Into The Use Of Polymer Bound Boronic Acid For Glucose Detection In Paper Based Microfluidic Devices, Spencer A. Schultz

Master's Theses

Paper Based Microfluidic Devices (microPADs) are a new platform for point-of-care diagnostic assays for use in resource-limited settings. These devices rely typically on enzymatic assays to produce their results, which makes them susceptible to degradation when exposed to extreme environmental conditions such as high temperature. In order to overcome this limitation, this research project focused on investigating the use of polymers instead of enzymes to detect analytes on microPADs.

Polymer-bound boronic acid, a glucose and pH sensitive polymer, was incorporated into microPADs in order to develop a chronometric, paper-based glucose assay. The polymer was tested with both lateral and vertical …

Cal Poly Supermileage Electronic Fuel Injection, Alexander Pink

Electrical Engineering

Cal Poly Supermileage is a student-run engineering club that builds prototype gasoline vehicles optimized maximum fuel-efficiency. To power their vehicles, the Supermileage team makes use of single-cylinder, 4-stroke, electronically fuel-injected (EFI) gasoline engines. This report details the development, iterative design & test cycles, and integration of an EFI system for the Supermileage club. This project develops an EFI system that interfaces to the most common types of sensors found in the low-power Supermileage-range of engines, including throttle-position sensors, manifold absolute pressure sensors, gear-tooth hall-effect sensors, variable-reluctance position sensors, engine coolant temperature sensors, intake air temperature sensors, and exhaust oxygen sensors. …

Solar Generation's Impact On Fault Current, Kody Heppner

Electrical Engineering

California is paving the road for other states with the capacity of solar installations for residential and commercial entities. The added capacity of solar generation to the state's electric grid has an impact on power flow and fault currents. This project looks at the impact of solar installations on fault currents. Feeders with added residential rooftop solar and larger commercial solar installations may impact the system differently than a large, utility-sized solar installation. This project looks at the impact of both cases on the magnitude of fault current during many different fault types and locations that can occur within a …

Critter Sitter: Weight Sensing Pet Door, Shelby Richardson

Electrical Engineering

Martin Kaliski is a typical pet owner. He currently houses both cats and a dog. In order to keep from having to constantly let his pets out in the middle of the night he has installed a pet door into his home. All was well and good until early one morning Martin woke up to the sound of his Pomeranian barking violently. He ran downstairs to see what the problem was. He not only found his dog standing there but also a wild raccoon. The raccoon had slipped into the house in the early morning and was rummaging through the …

Exertion Control, Travis Taylor

Electrical Engineering

Current wearable fitness devices give the user after-the-fact fitness data, but little real-time feedback. Exertion Control, a new wearable device, continuously measures the user’s heart rate, creates a heart rate target, and helps the user reach it. This project completes the senior design and master’s thesis requirements and contains two milestones. The senior design product continuously measures the wearer’s heart rate and logs it with a user-friendly interface. This data models the heart’s exertion response and recovery response. The master’s thesis device refines the closed control loop with the user to give them a workout optimized to fit their needs.

Micro-Inverter Improvement For The Energy Harvesting From Exercise Machine Project, James Ralston

Electrical Engineering

The Energy Harvesting from Exercise Machines (EHFEM) project at California Polytechnic State University consists of several different projects coming together to add human generated power to the grid. This project focuses on implementing a more efficient micro-inverter. The micro-inverter used to convert DC to AC voltage requires up to 5 minutes before the conversion process begins. This time lag significantly diminishes the power produced from an exercising individual. Research of micro-inverters approved by the CEC introduces desirable micro-inverters, available for use in California, to the EHFEM project. Testing the two most desirable micro-inverters found from research allows for quantifying of …

Robotic Overbed Table, Jonathan Lantz

Electrical Engineering

Traditionally overbed tables have simple and cheap designs, yet contain many disadvantages compared to the design proposed in this report. Disabled or bedridden persons, often require the use of a bedside table either in hospital environments or at home. Unfortunately, many modern overbed tables require the user to get out of bed and move in order to adjust and position the table. Incorporating a singlebutton control panel that allows the user to make adjustments and access other features independently, creates more accessible product. Integrated subsystems must control all motors and interfaces with an easy access control panel in order to …

Rf Power Harvesting Rectenna, Jimmy Tang, Raymond Phu, Tom Geranios, Benjamin Muñoz

Electrical Engineering

Sustainability is one of today's primary engineering objectives. This principle involves system design that minimizes environmentally harmful energy emissions and resource consumption, and maximizes renewable energy practices [1]. Communication antennas transmit wireless signals that can be converted into usable energy. The Rectenna system described in this report, shown in Figure 1, was designed to accomplish this energy conversion, with -5dBm (316µW) minimum power at the rectifier input. Since typical ambient signal power is in the -70dBm (0.1nW) range, the proposed system could only convert passive, relatively high-power microwave band AC signals to DC. The Rectenna system was designed for 1.9GHz …

#Likeagirl: Realizing The Communicative Potential Of Fourth Wave Feminism, Samantha Keville

Communication Studies

Although the notion of feminism has existed among humanity for centuries, it continues to remain one of the most ambiguous and controversial terms in today's society. Throughout history, there have been numerous efforts enacted among humanity aimed at honing women's rights, typically falling under the categories of first, second, and third wave feminism. Recent discussion has taken place regarding the emergence of a new wave of feminism existing today, known as fourth wave feminism. Fourth wave feminism is a movement characterized by the utilization of technology to enhance feminist ideals. Many companies have developed an association with the feminist movement …

Sunsafe Health Campaign: Rationale And Planning, Jennifer Gonzales, Michelle Merritt

Communication Studies

In Spring 2016, a team of Communication Studies students researched, planned, and conducted a health campaign on the Cal Poly campus. The goal of the health campaign was to educate fellow students about the dangers of sun overexposure and provide information on how to take preventive measures to protect their skin. Communication theories and concepts were applied while the messages of the campaign were created and distributed.

Mobile Food Vendor Ordinance Prepared For The City Of Clovis, Ca, Thomas Koybayashi

City and Regional Planning

No abstract provided.

Traducciones De Documentos De Los Programas Que Ofrece United Way Del Condado De San Luis Obispo, Courtney Helena Connor

World Languages and Cultures

The intent of this project is to translate various documents used by the United Way of San Luis Obispo County from English to Spanish. Due to the large number of native Spanish-speakers in San Luis Obispo County, there is a great need for information about community resources to be available in Spanish. Due to the nature of languages having many dialects, a significant amount of research was put into determining the dialect and word choice for the translations. Factors considered included region, educational level, socioeconomic status, etc. The translation was completed using a form of Spanish that sought to avoid …

The Emergence Of Efficacy: Effects Of An Orientation Leader Training Program On Participant Self-Efficacy, Hayley Marisa Walker

Communication Studies

This study examined the effects of California Polytechnic State University’s Spring Training Program for student Orientation Leaders on participants. Specifically, the present research explored the impact of the programming on participant levels of self-efficacy over the course of ten weeks. Data were collected from individuals who volunteered to partake in the research by responding to two questionnaires throughout the program. The results show that participants’ reported higher perceptions of self-efficacy at the end of the program than they did at the beginning. Further, such increases are significantly influenced by the performance of, and relationships with, prominent leaders within the program. …

Pet Food Monitor Using The Raspberry Pi, Kimberly Aguero

Computer Engineering

Computer system built on a Raspberry Pi that will monitor the levels of food in a pet food bowl. If it detects that there is no food in the bowl, it will notify the user via email or text.

Build-A-Board, Christopher Messerer, Brian Holland

Computer Engineering

The purpose of this project is to build a single board computer that will be able to run Linux and provide some expansion capabilities in the form of GPIO, USB, etc. This single board computer will have all the components that a fully functional computer has but with a much smaller form factor and overall capabilities.

Oluso, Diego Fernandez, Tyler Heucke, Nishant Mattu, Michael Roesch

Computer Engineering

Oluso is a new startup offering affordable, inexpensive technology to empower the individual. Our product is designed to keep the user in contact with someone close to them in emergency situations. Over the course of the past several months we have performed interviews with both individuals who may be interested in this product as well as organizations who may be interested in purchasing this product for their members. Our product is nearing completion and all of the companies we have interviewed have displayed a significant amount of interest in our product. The combination of easy communication and peace of mind …

Rapid Battery Exchange Automation, Andrea Everson

Computer Engineering

With the drastic threat of exhausting the world’s fossil fuels, society has been scrambling to find alternative forms of energy for transportation. One of these viable options is an electric vehicle powered by batteries. While this idea is fairly viable, consumers are looking to have the same experience with an electric car than they would with a gas-powered vehicle. One of their major concerns is the lack of range in an electric vehicle.

This project aims to present a solution that would extend the range by allowing users to quickly go from low battery to fully charged battery by performing …

Cal Poly Pier Remote Monitoring, Anthony Annuzzi

Computer Engineering

Marine scientists have deployed experiments at the Cal Poly Pier to study various parameters. A major problem with having these remote experiments is that scientists do not know if the experiment is functioning properly or if sensors stop working. The only way to check is to physically visit the deployment site. The goal of this project is to design and implement a remote monitoring system for equipment that is located at the Cal Poly Pier. This system will focus on monitoring the vital components of the system, specifically the voltage and current being supplied by the solar panel, the voltage …

The Design And Construction Of A Rear Bumper With Incorporated Spare Tire Rack, Alan C. Isaacson

BioResource and Agricultural Engineering

This senior project outlines the design and construction of a rear bumper with incorporated spare tire and equipment rack for a 1946 Willys CJ2A Jeep. The spare tire rack is capable of swinging out away from the vehicle to allow for the use of the vehicle’s tailgate. The bumper was designed for strength, functionality and aesthetic qualities alike. Additionally, the bumper design considered all vehicle codes and regulations.

Women's Shelters: Strategies To Empowerment, Rachel Raynor

City and Regional Planning

Working at a women’s social work site in Nicaragua, sparked my initial interest in researching and developing a typology of women’s shelters as an useful guide for determining and providing appropriate services. The goal is to create a typology that can be useful in determining what type of facility or shelter is the most effective for different women and the varying backgrounds and situations they are in. The desire to empower women was initiated by my first-hand experience in Nicaragua. There I saw many instances of intimate partner violence (IPV), as well as other, non-physical, forms of abuse. I never …

Astro – A Low-Cost, Low-Power Cluster For Cpu-Gpu Hybrid Computing Using The Jetson Tk1, Sean Kai Sheen

Master's Theses

With the rising costs of large scale distributed systems many researchers have began looking at utilizing low power architectures for clusters. In this paper, we describe our Astro cluster, which consists of 46 NVIDIA Jetson TK1 nodes each equipped with an ARM Cortex A15 CPU, 192 core Kepler GPU, 2 GB of RAM, and 16 GB of flash storage. The cluster has a number of advantages when compared to conventional clusters including lower power usage, ambient cooling, shared memory between the CPU and GPU, and affordability. The cluster is built using commodity hardware and can be setup for relatively low …

Graduate Internship In Agricultural Education- Avila Valley Barn Field Trip Guide, Emily Taylor

Agricultural Education: Graduate Internship Reports

The Avila Valley Barn Field Trip Guide connects engaging farm-based activities to content standards, including Next Generation Science Standards, California Agriculture and Natural Resources standards, and California Health Education Standards for K-12 students.

How To Make The Jailhouse Rock: An Evaluation Of Effective Music Therapy Methods Among Juvenile Offenders, Katelyn Rose Tomasello

Music

No abstract provided.

Complete And Lively Streets: Fostering Accessible And Vibrant Streets For Walking And Biking, Camille Jackson

City and Regional Planning

No abstract provided.

Arroyo Nuevo Specific Plan A Conceptual Plan For The Usa-Petrochem Refinery Site, Tanner Shelton

City and Regional Planning

No abstract provided.

Transparency In The Fast-Food Industry: Utilizing Mobile To Capture New Audiences, Mary Dundon

Journalism

No abstract provided.